Rounding machine



Dec. 6, 1938. F. E. BERT RAND 2,

' ROUNDING MAGHINE Filed Feb. 10, 1937 VE/v TUR- Wf- JJM Maia Patented Dec. 6, 1938 I UNITED STATES PATENT OFFICE 2,138,951 ROUNDING MACHINE Frederic E. Bertrand, Lynn, Mass, assignor to United Shoe Machinery Corporation, Paterson,

. J., a corporation of New Jersey Application February 10, 1937, Serial No. 125,075 20 Claims. (Cl. 1217) My invention relates to machines for cutting shank which may be adjustably clamped in the the periphery of an article to a chosen form, it knife-carrier, the depth of action of the knife being particularly concerned with the imparting upon the deflected material maybe varied. Withthis form to a portion only of such an article out reference to the particular operation which is as th in l of sh performed by my improved rounding machine, 5

'Ihereis acommercial insole upon Whichalastthe Work-piece may be located with respect to lug rib is produced by so rounding a blank that the pattern by forming the abutment as a gage.

finished insole; splitting or channeling the edge work-piece. Then, when the work is applied to of this insole-piece to divide a lip from a thicker the gage for clamping with the co-operating pat- 10 secured by cement and furnishing the lasting In the accompanying drawing. rib. This invention has as an object the pr0vi Fig. 1 illustrates a particular form of my insion of a machine by which the rounding of vention in perspective; the body-portion of the margin of an article of Fig. 2 is a broken, transverse, sectional detail the character of that just indicated may be pertaken just at the rear of and looking toward the formed accurately, without severing or weakening knife; t

the lip or like portion which has been divided Fig. 3, an enlarged fragmentary plan view, in-

therefrom, cluding the knife in section, the plow and a por- The above object I attain by combining with tion of the Work, and

a knife movable about an article divided at its Fig. 4, an enlarged detail in front elevation of edge and which cuts completely through one of the knife and plow.

the divided portions toward the adjacent face This invention may be made a part of the soleof the other divided portions, guard means for rounding machine disclosed in Letters Patent of member, which may be considered as a plow exl8 upon an arm 20 to WhlCh is imparted a comtends into the channel in proximity to the point pound movement of oscillation and bodily travel oi the knife, there being a surface by which the w ch causes the kmfe to move about the P material at one side of the channel 15 deflected tern under the guidance of its periphery from the point of the knife along its cutting It will be assumed that an insole I of the char- 50 spaced from the knife that the knife-point will edge to form a relatively thin marginal lip b,

5 not penetrate it. By providing the plow with a which is to be folded upon itself to furnish a last- 2 ing rib, and a thicker marginal body-portion c, to which this rib is to be secured. The work-piece has been rounded, so the periphery of the forepart is substantially of the contour desired for the edge of the lip b. The periphery of the abutment i2 is also of this form. There must be an excess of width of the margin of the lip-portion over that of the body-portion to provide for its folding, and it is the purpose of my invention to remove from the body-portion a width corresponding to this excess, thus bringing said bodyportion to substantially its final form. At the same time, the lip is to be guarded against injury by the knife 10. Formed vertically in the block H5 in advance of the knife is a groove'22 to 're-" ceive the shank 24 of a plow or deflecting member 26. Extending horizontally substantially at rightangles to the shank is an arm 28, from which the blade of the plow projects. The under face 30 of the plow is preferably horizontal, while the upper face 32 is inclined downwardly toward the pattern and forwardly in the direction of advance of the knife. It is of such thickness that an insole may be applied to it with the lip 12 resting upon the abutment l2 below the surface 30, while the bodyportion 0 is deflected upwardly by the surface 32. The point of the knife lies near the rear edge 35 of the plow just outside its inner edge 38 and, as is clearly shown in Fig. 4, is located vertically in a plane between the lower surface 3% and the upper surface 32. To allow this vertical position to be accurately determined, the shank 24 of the plow is secured for adjustment in the groove 22. The shank and plow may be shifted to the proper height by a screw 38 threaded into a projection from the block it with its head in a depression in the shank. Said shank is guided and secured in the adjusted position by a screw 40 threaded into the block and passing through a vertical slot 32 in the shank.

The operator places an insole I, divided as previously described into a lip-portion b and a body-portion c, lip-side down upon the supporting abutment i2, gaging it thereby with respect to the pattern M by bringing the periphery of the insole into registration with that of the abutment. The knife H! is initially near one end of the breast-line of the sole. In tnus positioning forward edge A l of the plow 28 is caused to enter channel a. The work is then clamped by the pattern l4 upon the abutment. knife is held against the pattern by an unillustrated spring acting upon the arm 29. When the apparatus is started in operation, as the plow 26' travels forward, its surface 30 holds the lip b down, while the inclined surface 32 deflects the marginal body-portion c upwardly into the path of the advancing knife 18. In this upward defiection of the body-portion c, its lower surface is raised from the upper surface of the lip b, with which it has been in engagement. This elevation, which is illustrated in Fig. 1 of the drawing, occurs because, as appears in Fig. 4, the face 32 of the plow which travels beneath and in contact with the lower surface of the portion 0, is inclined upwardly and rearwardly with respect to such travel, so the portion 0 is lifted by an amount equal to at least the difference in height of the plow-surface 32 between its forward and rear edges. The knife l0, as best shown in Fig. i, has a cutting edge which extends upwardly from its lowest point to a point above the maximum height of the plow-surface 32. The location of the knife is beside the plow, with its point below the surface 32. It will be seen that the body-portion 0 is deflected upwardly by the plow-surface 32; that the cutting edge of the knife extends upwardly adjacent to such surface, succeedinfg points of the portion 0 and succeeding points of the knife-edge occupying together different horizontal planes; and that the deflection and cutting action occur simultaneously. Therefore, the material being severed is shifted upwardly along and in contact with the cutting edge, starting just above the level of the upper surface of the lip b and ending its upward deflection near the level of the upper extremity of the surface 32 and near the upper extremity of the cutting edge of the knife. The body-portion c is thereby severed about the forepart of the insole to the opposite extremity of the breast-line. There is thus removed a waste strip d, leaving a narrower bodyportion having the contour of the pattern l4 and of the finished insole. The lip is held positively upon the abutment plow, which so guards it against remains unaffected, although fully cut. Thework-piece, when removed from the apparatus, is ready for the folding of the lip to furnish a lasting rib.

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a machine of the divided edge of an article, a rounding knife movable about the article and arranged to out completely through one of the divided portions between its opposite faces and toward the adjacent face of the other divided portion, and means movable with the knife for preventing said knife from cutting said other divided portion.

2. In a rounding machine, an abutment with which the work contacts, a pattern co-operating with the abutment, a knife and its carrier movable under the guidance of the pattern, and means for moving a portion of the work into the field of action of the knife.

3. In a rounding machine, an abutment against which the work rests, a pattern co-operating with the abutment, said abutment furnishing a gage whereby the work may be positioned with respect to the pattern, a knife and its carrier movable under the guidance of the pattern, member mounted upon the carrier and extending between a portion of the work and the abutment.

4. In a rounding machine, an abutment against which the work rests, a pattern co-operating with the abutment, a knife and its carrier movable under the guidance of the pattern, and a guard member mounted upon the carrier and extending between a portion of the work and the abutment.

5. In a rounding machine, an abutment against which the work rests, a pattern co-operating with the abutment, a knife and its carrier movable under the guidanceof the pattern, the knife having an extended cutting edge, and a deflecting member mounted upon the carrier and arranged to shift a portion of the material along the cutting edge of the knife.

6. In a rounding machine, an abutment against which the work rests, a pattern co-operating with the abutment, a knife and its carrier movable under the guidance of the pattern, the knife having an extended cutting edge, a deflecting member mounted upon the carrier and arranged to shift a portion of the material along the cutting edge of the knife, and

and a guard a means arranged to vary the position of the deflecting member along the In a machine for rounding an insole which knife. has been edge-channeled to separate a lip from 7. In a machine for rounding a work-piece the body-portion, a pattern against which a face having a channeled edge, a pattern against which of the body-portion of the insole is clamped, a

5 the work is clamped, a knife and its carrier movknife and its carrier movable under the guidance 5' able under the guidance of the pattern, and a of the pattern to round the body-portion of the member mounted upon the carrier and extending le, a plow p ov ed h a a k fi d in the km and means arranged to clamp the shank of the 8. In a machine for rounding a work-piece plow in different positions upon the carrier. 10 having a channeled edge, a pattern agalnst which 5 In a machine f r r u d e an s l wh h mountedupon the carrier and extendin into th knife and its carrier movable under the guidance 15 9. In a ma hin for rounding work pjece which rests the body-portion which has been sep- 20 ing with the knife, said plow t the side toward the bodyportioh, a pattern a a n t which a face 25 having a channeled edge, apattern against which in the Carrier a blade i i f the 30 with the knife, said plow at the side toward the 1 In a rounding machine, a pattern and a pattern having a surface inclined from the patgage t n wh ch a Work-piece is clamped for 35 tern and forwardly in the direction of advance a mundme Operatlon, the gage havmg a contour kmm pattern, and a movable rounding knife guided 40 11. In a machine for rounding a work-piece g pattem- 40 having a channeled edge, a pattern against which In a rounding machine a Pattern and a the work is clamped, a knife and its carrier movgage between Whlch Work-piece 1s clamped for forwardly in the direction of advance of the knife by and work'guard traveling with and being arranged to elevate the material conthe kmfe' tactlng with it above the point of the kmfe, and 19 In machme for roundmg an msole havmg means arranged to vary the relation of the worka channeled edge dlvldmg 1t mto margmal 50 contacting surface to the point of the knife bodyportlon and a mammal hp work'sup' of the pattern to round the body portl-on of the ing to sever the body-portion under the guidance insole, and a plow provided with a shank fixed in of the pattern the carrier and a blade extending into the chan- In a machme q o ne n 1115018 alf n nel, a Channeled e divid ng t into a marginal 13. In a machine for rounding an insole which POW-190M011 and a margmal 11p, a Work-supporthas been edge-channeled to separate a lip from mg gage COT espondmg in contour to e em the body-portion, a pattern against which a fa e neled insole, a pattern co-operating with the gage of th body-pgrtjon rests, an abutment to clamp the insole between them, said pattern sponding to the form of the insole to be rounded having the contour to which e b y-p rtion is 65 for gaging the work with respect to the pattern, be d, a d g knife actin to ver the guidance of the pattern to round the bodychannel and co-operating with the knife. 7 portion of the insole, and a plow mounted upon the carrier and provided with a blade extending FREDERIC' E. BERTRALND. 

